# Question: How Much Concrete For 12 Sonotube?

## How much concrete is needed for a sonotube?

For example, a sono tube with a 10″ diameter and a 4′ depth requires 0.08 cubic yards of concrete.

## How do you calculate concrete for a round hole?

The formula for the volume of a round hole is pi r2 x depth. Or 3.14 x radius x radius x depth. The radius is half the width of the hole.

## How much concrete do I need calculator?

For concrete, the formula for volume is as follows: length x width x thickness. To determine how many bags of concrete you will need, divide the total cubic yards needed by the yield. Use the following yields per each bag size: 40 pound bag yields.011 cubic yards.

## How many bags of concrete do I need for a 4×4 post?

Mix two 50lb bags of concrete with water in a mixing tub or 5-gallon bucket. Add concrete into the hole and around the 4” x 4”. Depending on your climate, let concrete set up for 24 – 48 hours.

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## How many 80lb bags of concrete makes a yard?

If you’re using 80lb bags of concrete, you’ll need 45 bags to make a yard.

## How many bags of concrete do I need for a 10×20 slab?

A 60-pound bag yields. 017 cubic yards, and an 80-pound bag yields. 022 cubic yards. For a 10 x 10 slab, you would need 77 60-pound bags or 60 80-pound bags.

## How many bags of concrete do I need for a 6×6 post?

As I recall, a 60# bag of concrete is about. 5cf, so you’d need 3 bags per hole.

## How many bags of concrete do I need for a post hole?

Most fence post holes will need between 1 – 4 bags of concrete to securely hold the post in place. The best way to determine the size of the hole is: Diameter of the hole is 3 times the width of the fence post. Depth of the hole is one-third to half the above ground height of the fence post.

## How many cubic meters is a 25kg bag of concrete?

Concrete is a mix, typically of 1 part cement to 4-5 aggregate, and a cubic metre of finished concrete weighs around 2.5 tonnes, so requires around 500kg cement or 20× 25kg bags. In direct answer, there is about 1/100th or 0.01 m3 in a 25kg bag.

## How much is a Metre of concrete?

Ready-mixed concrete is sold by the volume, so it’s essential to know the area you’re filling. The price of concrete depends on many factors, including where you’re located and the type you’ve ordered. However, in general, you should be looking at a cost of between £65 and £85 per cubic metre.

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## How much does a yard of concrete cover?

One Cubic Yard of Concrete: 4-inches thick – covers 81 square feet.

## Do you leave sonotube in ground?

No, it’s not a problem to leave the Sonotube and its plastic “Square Foot” (like these) in the ground forever.

## What size sonotube for a 4×4 post?

What size Sonotube do I need for a 4×4fence post? The rule-of-thumb is to use a tube diameter 3 times the post width, therefore use a 12” diameter Sonotube for a 4×4post.

## How much does 20kg of concrete make?

one 20kg bag will cover an area of 1.1m2 to a depth of approximately 10mm. or 108 x 20kg bags equates to one cubic metre of mixed concrete.